Rotary pocket-fan



E. SCHUELLER.

ROTARY POCKE T FAN. APPLICATION FILED NOV-I81 1920.

1 387, 1 86, Patented Aug. 9, 1921.

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EUGENE SCI-IUELLER, or PARIS, FRANCE, ASSIGNOR- To soorfii'rn INDUSTRIELLE DE oELLULorn, or PARIS, FRANCE, A. LIMITED coMPAnY or FRANCE.

ROTARY POCKET-FAN.

nesmee.

Specification of Letters Patent.

Application filed November 18, 1920. srial no. 424,831.

T 0 all whom it may concern:

, Be it known that I, EUGENE SOHUELLER, a citizen of the Republic of France, residing at Paris, France, have invented certain new and useful Improvements in Rotary Pocket- Fans, for which I have filed application in France, March 26, 1920, and of which the following is a specification.

Pocket fans with folding helical blades are known, in which a reciprocatory rack actuates an intermediate shaft which by a suitable connection entrains the shaft of the blades, the latter being given an intermittent rotary movement, but always in the same direction.

The present'invention relates to improvements in the general type of fans, and consists substantially in a slide comprising 'two members connected together by 'mortises and tenons and provided with two push abutments, the slide carrying the blade shaft and the intermediate shaft. interconnected by suitable means, thefrack' actuating the intermediate shaft and at the same time serving as a guide for the slide.

, Theinvention, thus, comprises a combination of parts by means of which the reciprocatory movement of the rack is converted into an alternate rotary movement of the intermediate shaft and blade shaft, the

blades however, always continuing to turn in the same direction about their shaft.

V arious contrivances in accordance with the invention are shown by way of example on the accompanying drawing, in which Figure 1 is a plan of the rotary pocket fan, the helical blades being folded.

' Fig. 2 is a vertical section of. this fan along the line 22 of'Fig. 1.

Fig. 3 is an elevation of the driving ratchet of the helical blades.

Fig. 4 is an elevation of the pawl disk connected to the disks of the helical blades.

Figs. 5, 6and 7 are detail views of'the two pieces constituting the slide.

Figs. 8, 9 and 10 show the three helical blades.

The rotary pocket fan" forming the subject of the present invention consists essentially of a slideway with a rack and a slide carrying the driving mechanism and the spindle of the helical blades.

The slidewayis formed oftwo bars 1 and 2, of which onel hasa rack on its inner face. The two bars. are interconnected onv the one hand by a push. button 3 and'on the other hand by a cross bar 4. H

The slid-e carrying the driving mechanism consists of two pieces5 and 6, the detail of. which is shown in Figs. 5, 6 and 7. The front piece 5 embraces the outer sides of the bars 1 and'2 on which it slides; it has lugs 7 and 8 which engage respectively in the apertures 91 and on the shoulders 10of the piece 6, which facilitates the assembly and taking to pieces of .such pieces and which insures absolutely invariable relative positions of the two pieces. This last condition is rendered particularly useful by the fact that the spindle ofthe' helical blades and the counter spindle of the driving pinion extend through the .two pieces 5 and 6 respectively at. 11-12 and 15-16. The piece 6 has push abutments 13-14.

The driving mechanism is carried-in the following manner by the slide A counter spindle 17 extends at 15 and 16 it through the slide ;"on this spindle are secured a'pinion18 in engagement with the rack.1, and a spur wheel 19 in engagement with a pinion. 20 secured on the spindle 21 of the helicalblades. s

The spindle 21 extends through the slide at 11 and 1 2 and carries a ratchet 22, of which the detail is shown in Fig.3.

- On the spindle 21is freely mounted the aggregation consisting of the disks and the helical blades. Apawl disk 23 (Fig. 4)"is' provided with tongues26 protrudingfrom the surface of this disk and inclined rela-.

tively thereto.

The teeth of the ratchet I 22 can abut against the inclined tongues of the pawl I disk or slide freely over their inclined surface according-to the direction of rotation of the spindle 21. Two other disks 24 and. 25 clasp between them the three helical blades 27, 28 and 29. The disks 23, 24, 25 are connected together by a pin in common entering the notches 30 of these-disks. The helical blades 27, 28, 29 (Figs. 8, 9 and 10) are mounted freely on thespindle 21, the blade 28 being secured to a pin com mon to the disks 23, 24, 25 by its notch 31; the blades 27 and 29 can engage with this common pin by their shoulders 32 or 33.

A returning spring 35is fitted between the slide carrying the mechanism and the rack-provided slideway.

The rotary pocket fan above described is operated in the following manner :The contrivance is grasped between the thumb placed on the push button 3, and on the other hand the index finger and the middle finger bearing on the lateral pushes 13 and 14. The thumb is approached by the index and middle fingers.

The rack 1 gearing with the pinion 18 causes the rotation of the spindle 17 and consequently of the spur wheel 19 which, actuating the pinion 20, causes the spindle 21 and the ratchet 22 to rotate; the teeth of the ratchet 22 enter into engagement with the tongues 26 of the pawl disk 23, which causes the rotation of this disk and in consequence of the aggregation consisting of the disks 2%, and the helical blades 27, 28, 29. The blade 28 which is constantly connected to the disks 2%, 25 participates at once in their rotation, the blades 27 and 29 on the con trary, by virtue of their inertia, lag until their shoulders 33 are encountered by the pin common to the disks 23, 24, 25. At this instant the three blades 27, 28 and 29 are disposed mutually 120 apart and then par ticipate uniformly in the rotation.

When the slide 5-6 has completed its stroke bringing it near the push 3, pressure on the lateral pushes 13 and 14- by the index and middle fingers is relaxed. The returning spring 35 acts on the slide 5-6 and brings it back toward the cross bar 4:. The slide .5-6 therefore undergoes a rectilinear displacement in the opposite direction to that before, which effects a rotation in the reverse direction of the spindles 17 and 21 and of the ratchet 22 which is fast on the spindle 21. The ratchet 22 turning in the reverse direction to that of the preceding rotation escapes from the tongues 26 of the pawl disk 23 and rides over their inclined surfaces without actuating them. In consequence the aggregation consisting of the pawl disk 23, the disks 2 L-25, the helical blades 2728-29, not being affected by the new rotation of the spindle 21 continues to turn in the same direction as before by virtue of its momentum.

Once the slide 5-6 has returned to its initial position, it uificesto renew the same sequence of movements to impart a fresh rotary impetus to the helical blades, always in the same direction as the initial rotation.

By rapidly repeating this series of operations, an almost uniform movement of rotation is imparted to'the helical blades, insuring a rapid displacement of air, like a fan swung by hand.

The slide 56 thus plays an important part in the above described operation of the improved fan. In practice the two push abutments 13 and it on which the index and middle fingers, respectively, of the operator rest during use of the fan assure symmetry of effort to which the mechanism of the fan is subjected and avoid premature wear of the teeth as a result of meshing with the pinion and the rack. These two push abutments render the operation of the fan particularly convenient and easy.

Furthermore the arrangement of the intermediate shaft and the blade haft between the two walls of the slide reduces the bulk of the fan and permits of its being readily placed in a fiat container which may be easily inserted in the pocket.

Finally the manner of assembling the two members 5 and 6 by tenons and mortises as sures sufficient rigidity of the assemblage and prevents excessive play of the slide in relation to the parts on which it is mounted; the mechanism being thus perfectly guided in its movements.

Claims I 1. A pocket fan comprising a slide consisting of two members connected together by tenons and mortises and carrying two push abutments, a blade shaft carried by the slide, an intermediate shaft carried by the slide, means interconnecting said shafts, and a rack for actuating the intermediate shaft and serving as a guide for the slide.

2..A pocket fan comprising a slide consisting of two members connected together by tenons and mortises and carrying two push abutments, an intermediate shaft mounted on the slide, a pinion carried on said shaft, a rack acting as a guide for the slide and adapted to actuate said pinion a blade shaft mounted on the slide, a pinion fixed on said blade shaft, a gear wheel on the intermediate shaft in mesh with the last named pinion, a ratchet fixed on the blade shaft, helical blades mounted on the blade shaft, and a pawl disk rigid with the assembly of blades and adapted to engage with said ratchet when the latter turns in a certain direction. 7

In testimony whereof I have afiixed my signature in the presence of two witnesses.

EUGENE SCHUELLER. lVitnesses LOUIS GARDET, HENRI Monnv. 

